Re: Map iterate problem Application Scope

[Mark Ayad <ma...@javamark.com>]

Map iterate problemThe iterate examples seem to use Maps that are created in the PageScope. In the case of a Map-backed action form.

However what I'm trying to do is iterate over a an Object placed in the application scope: a.k.a. I can't seem to get the <logic:iterate> to work even though the bean mm is sitting quite hapily in the application scope.

servlet.getServletContext().setAttribute("mm", new MultiMap());

public class MultiMap
{
 public Map values = new HashMap();

    public void setValue(String key, Object value) {
        values.put(key, value);
    }

    public Object getValue(String key) {
        return values.get(key);
    }
   
    public MultiMap()
    {  
     values.put("foo","bar");
    }
   
    public Map getMap()
    {
     return values ;
    }
}

Is the possible ?

Re: Map iterate problem Application Scope

[Robert <rm...@bull-enterprises.com>]

I actually had this problem with other objects (not necessarily maps) 
and it turned out that the logic and bean tags would only find my 
objects if I set them in the pageContext object, meaning I would have to 
do this in my JSP:

....
<% pageContext.setAttribute( "mm" 
pageContext.getServletContext().getAttribute("mm"), 
pageContext.APPLICATION ); %>
...

It sucked, but it worked. Essentially the tags were always looking in 
the pageContext object and not the servletContext. Or maybe it was a 
problem with the pageContext implementation in Tomcat, don't know which.

For JavaBeans, I could use a <jsp:useBean> tag that pointed to my bean 
and the tags would find it as well. So if I set a bean in session / 
request scope, say in an Action, I would have to use a jsp:useBean tag 
on the page that defined the bean that was already there.

Robert

Mark Ayad wrote:

>Map iterate problemThe iterate examples seem to use Maps that are created in the PageScope. In the case of a Map-backed action form.
>
>However what I'm trying to do is iterate over a an Object placed in the application scope: a.k.a. I can't seem to get the <logic:iterate> to work even though the bean mm is sitting quite hapily in the application scope.
>
>servlet.getServletContext().setAttribute("mm", new MultiMap());
>
>public class MultiMap
>{
> public Map values = new HashMap();
>
>    public void setValue(String key, Object value) {
>        values.put(key, value);
>    }
>
>    public Object getValue(String key) {
>        return values.get(key);
>    }
>   
>    public MultiMap()
>    {  
>     values.put("foo","bar");
>    }
>   
>    public Map getMap()
>    {
>     return values ;
>    }
>}
>
>Is the possible ?
>
>
>  
>


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